2017年7月28日 星期五

Unlocking the secrets of Rome's super-strength concrete


The Romans produced concrete by mixing volcanic ash with lime and sea water to create a mortar, then adding chunks of volcanic rock—a process much different than what's used to make today's concrete.
From Curiosity

The Roman Empire fell more than a thousand years ago, but its concrete architecture still stands.
CURIOSITY.COM





BBC Science News 分享了 1 條連結

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